Disturbing noise while playing music in Windows

Hi. I have a new Mbox3 working under Windows 7 and all was going well since yesterday.



When I play music (doesn't have to do with PT) with any reproducer or at youtube, for instance, it randomly stops or gets distorted, very weird since it was working perfectly until now.



Find an audio clip of what it happens here: http://we.tl/bCCikUOBfr



Any idea?



Thanks so much for your patience.